Background: Amyloidosis is a rare disorder caused by abnormal folding of proteins, leading to the dysfunction of normal tissues. Amyloid deposition can affect several organs, but deposition in the large intestine is rare.
Case Presentation: A 79-year-old man presented with gastrointestinal bleeding and nonspecific symptoms of weight loss, dry heaves, dysphagia, and weakness.
World J Gastroenterol
May 2008
Cholangiocarcinoma is a rare malignancy of the biliary tract. Key factors in determining therapeutic options include knowledge of tumor extent, anatomy and obtaining tissue diagnosis. Endoscopically, there are three modalities available to make the diagnosis of cholangiocarcinoma.
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